Richard Madden, known for playing the late Robb Stark on HBO’s Game of Thrones, is reportedly in talks to join Angelina Jolie and Kumail Nanjiani in Marvel’s new cosmic superhero team. Details surrounding Madden’s potential role are unclear, but it seems likely that he’ll be taking on Ikaris, an immortal with the ability to harness and control cosmic and psionic energy.

Created by Jack Kirby back in the late 1970s, The Eternals are an “evolutionary offshoot” of humanity created by the god-like Celestials when the Earth was new. The experimentation gave the Eternals superpowers such as flight, enhanced durability, and incredible strength as well as functional immortality. Though the Eternals themselves have not been alluded to in the MCU, their progenitors have been with Guardians of the Galaxy featuring “Knowhere,” a city contained within the severed head of a Celestial avatar, and Vormir a planet referred to in Avengers: Endgame as the “center of Celestial existence.”

Similarly, Thanos, the villain of the MCU’s Infinity Saga, is known as a “Deviant” in the comics, an Eternal with a genetic mutation responsible for his purple skin and incredible strength; however, Thanos’ lineage and race was never addressed in the movies.

The Eternals will be directed by Chloe Zhao (Songs My Brothers Taught Me, The Rider) and written by Matthew and Ryan Fripo. It is rumored to focus on the love story of Sersi (Jolie), an Eternal who spends her time immersed in human society, and Ikaris, an Eternal fueled by cosmic energy.